remote script文档(转载自微软)(九)

文档: 等待方法

终止当前正执行的客户脚本，直到指定调用对象的异步 remote scripting 调用完成。

语法

co.wait()

参数

co
执行 remote scripting 调用而生成的调用对象。

说明

调用该方法将把一个异步 remote scripting 调用转换为同步调用。如果 remote scripting 调用已完成，那么该方法将立即返回。如果您在客户脚本中遇到这种情况──需要来自 remote scripting 调用的结果，那么这种调用是有用的。

示例

下面的脚本异步调用 EmpLists 页上的方法 GetNames。当发出调用后，它显示一条消息，然后等待结果。

<script LANGUAGE="&#106avascript" FOR="btnReport" EVENT="onclick">
    empLookup = RSGetASPObject("../mypages/EmpLists.asp");
    co = empLookup.GetNames(showResults);
    txt1.value = "Getting employee names ..."
    co.wait()    // suspends client processing
</script>

文档: 取消方法

停止某个正异步执行的 remote scripting 调用。

语法

co.cancel()

参数

co
执行某个 remote scripting 调用而生成的调用对象。
说明

您可以在异步调用 remote scripting 过程中调用该方法──如果您决定不再需要异步调用结果的话。如果某个用户动作──比如单击按钮或者请求漫游到另一页──指示 remote scripting 调用已经无效的话，那么这种调用是有用的。

您不能取消同步 remote scripting 调用。

示例

<script LANGUAGE="&#106avascript" FOR="btnReport" EVENT="onclick">
    empLookup = RSGetASPObject("../mypages/EmpLists.asp");
    coEmpList = empLookup.GetNames(showResults);
    txt1.value = "Getting employee names, press Cancel to stop."
</script>

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